I am totally confused ... Is this product a 33% duty cycle or 100%? Why does it list both specsm

There are two different models.....400P-RV runs at 33% duty cycle (The 400P-RV can only run continuously at 100 psi for 20 mins before needing to cool down.) The 450P-RV has a duty cycle of 100% (The 450P-RV is a slower filling compressor, due to the lower CFM, but it can be run continuously at 100 psi for up to an hour before needing to cool down.)

Viair website shows part number for this item as 45057 and this listing show the part number as 45053. which is it?

45057 is only available through RV dealers like united RV, technorv.com or bob hurley rv. This listing is for 45053

What is tbe difference betweet the 45053 and the 45043? Just the rv kit or the compressor its self?

Zack, The compressors are essentially the same. The RV version has extra attachments that help when filling motor-home tires: a 45 degree chuck, a 90 degree chuck and an additional 30ft of air hose. Let us know if you have any other question. VIAIR Corporation

If i already have the 440p can i purchase the rv accessories separately?

No, unfortunately the 440P has a different size attachments and it is NOT an automatic compressor.Thank you

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VIAIR 450P-RV Automatic Portable Air Compressor Kit - 150 PSI for RV, Truck, Jeep and SUV Tires - RV Accessories with 1.80 CFM, Silver

VIAIR 450P-RV Automatic Portable Air Compressor Kit - 150 PSI for RV, Truck, Jeep and SUV Tires - RV Accessories with 1.80 CFM, Silver

Product ID: 742097527

Details

Brand
VIAIR
Noise Level
69 db
Power Source
Battery
Recommended Uses For Product
Tire Inflation
Voltage
12 volts

⚡12V power for on-the-go use

💨1.8 CFM airflow for fast inflation

🔧150 PSI max pressure for heavy-duty tires

NT$28277

Duties & taxes included

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Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Inflate Like a Pro, Wherever the Road Takes You!

COMPLETE PORTABLE KIT - Includes dual 30ft hoses, tire inflation gun with pressure gauge & deflation button, all in a rugged carry bag.
EFFORTLESS AUTO SHUT OFF - Built-in pressure sensor stops inflation at the perfect PSI—no guesswork, no overfill.
HEAVY DUTY CONTINUOUS RUN - 100% duty cycle lets you inflate large RV and truck tires without overheating or downtime.
QUIET COMPACT POWERHOUSE - Runs at a low 69 dB with vibration isolation, fitting easily under SUV seats for instant roadside readiness.
VERSATILE TIRE COMPATIBILITY - Inflates tires up to 42" diameter—perfect for RVs, trucks, SUVs, and Jeeps.

The VIAIR 450P-RV Automatic Portable Air Compressor Kit delivers up to 150 PSI with a powerful 1.8 CFM airflow on a 12V system, designed for heavy-duty tire inflation on RVs, trucks, SUVs, and Jeeps. Featuring an automatic shut-off sensor, continuous run capability, and a complete kit with dual 30ft hoses and a precision air gun, it ensures fast, quiet, and reliable tire maintenance on the go—all packed in a durable carry bag for ultimate portability and peace of mind.

Specifications

ASIN	B0141KJTKQ
Additional Features	Heavy Duty, Portable
Air Flow Capacity	1.8 cfm
Best Sellers Rank	#32,426 in Automotive ( See Top 100 in Automotive ) #200 in Wheel & Tire Air Compressors & Inflators
Brand Name	VIAIR
Capacity	1.8 cubic feet
Color	Silver
Compatible Hose Diameter	0.11 inches
Customer Reviews	4.7 4.7 out of 5 stars (1,947)
Global Trade Identification Number	00818114004575
Hose Length	60 feet
Included Components	(2) 30ft coil hoses (60 ft total reach), 12-Volt Compressor, Carry Bag, Pre-mounted vibration isolated sand tray, Tire inflation gun with inline 150 gauge PSI and deflation button
Item Dimensions L x W x H	12.4"L x 5.8"W x 7.5"H
Item Type Name	Portable Air Compressor
Item Weight	13.1 pounds
Manufacturer	VIAIR
Manufacturer Part Number	45053
Manufacturer Warranty Description	1 year manufacturer defect warranty, VIAIR Corporation warrants this product to the end-user, when properly installed and under normal conditions of use, to be free from defects in workmanship and materials for a period of one year from the provided date of purchase for the original purchaser of the product. This warranty does not cover abuse, operation in a manner inconsistent with the product’s …
Material Type	Alloy Steel
Maximum Current	23 A
Maximum Power	318 watts
Maximum Pressure	150 psi
Model Name	450P-RV Automatic Portable Compressor Kit
Model Number	450P-RV
Noise	69 db
Number of Items	1
Part Interchange Info	45053
Power Source	Battery Powered
Recommended Uses For Product	Tire Inflation
Style	Original Portable
UPC	818114004575
Unit Count	1 Count
Voltage	12 volts

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